diff --git a/CMakeLists.txt b/CMakeLists.txt
index af2ddb2beda..a4dac6f6c34 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,6 +2,10 @@
 cmake_minimum_required(VERSION 2.8)
 project(REACTOS)
 
+if(NOT ARCH)
+    set(ARCH i386)
+endif()
+
 # Compile options
 if(ARCH MATCHES i386)
     include(config.cmake)
diff --git a/toolchain-mingw32.cmake b/toolchain-mingw32.cmake
index 6eed0060564..e67a34a42cd 100644
--- a/toolchain-mingw32.cmake
+++ b/toolchain-mingw32.cmake
@@ -1,8 +1,4 @@
 
-if(NOT ARCH)
-    set(ARCH i386)
-endif()
-
 # Choose the right MinGW prefix
 if(ARCH MATCHES i386)